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Get Full Access to Introductory Chemistry - 5 Edition - Chapter 2 - Problem 95p
Get Full Access to Introductory Chemistry - 5 Edition - Chapter 2 - Problem 95p

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# A sample of an unknown metal has a mass of 35.4 g and a volume of 3.11 cm3. Calculate

ISBN: 9780321910295 34

## Solution for problem 95P Chapter 2

Introductory Chemistry | 5th Edition

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Problem 95P

Problem 95P

A sample of an unknown metal has a mass of 35.4 g and a volume of 3.11 cm3. Calculate its density and identify the metal by comparison to Table 1.

Table 1 Densities of Some Common Substances

 Substance Density (g/cm3) charcoal, oak 0.57 Ethanol 0.789 Ice 0.92 water 1.0 glass 2.6 aluminum 2.7 titanium 4.50 iron 7.86 copper 8.96 lead 11.4 gold 19.3 platinum 21.4

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Step 1 of 3

Solution 95P

Table 1 Densities of Some Common Substances

 Substance Density (g/cm3) charcoal, oak 0.57 Ethanol 0.789 Ice 0.92 water 1.0 glass 2.6 aluminum 2.7 titanium 4.50 iron 7.86 copper 8.96 lead 11.4 gold 19.3 platinum 21.4

In this question it has been given that the mass of unknown metal is 35.4 g and volume is 3.11 cm3.

We have to calculate the density of the unknown metal.

It is known that density (d) =

Hence d = = 11.382 g/cm3

Thus the density of the unknown metal is found to be 11.382 g/cm3

The density of lead in the above table is given as 11.4, hence the obtained density (11.382) is nearly equal to the given  density.

Thus the unknown metal is assumed to be lead.

Step 2 of 3

Step 3 of 3

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